<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{

    private $_id;
    public $username;
    public $_name;

    const ERROR_USER_NOT_ACTIVE = 13;

    public function __construct($username, $password = null)
    {
        parent::__construct($username, $password);
        $this->username     = $username;
        $this->password  = $password;
    }

    public function init()
    {
        Yii::app()->user->setStateKeyPrefix('_admin');
    }

    /**
     * Authenticates a user.
     * @return boolean whether authentication succeeds.
     */
    public function authenticate()
    {
        $role = isset($_POST['role']) ? $_POST['role'] : Users::TYPE_CUSTOMER;
        $user = Users::model()->find('LOWER(username)=:username AND type=:type', array(
            ':username' => strtolower($this->username),
            ':type' => $role
        ));
        
        if ($user === null)
            $this->errorCode = self::ERROR_USERNAME_INVALID;
        
        else if (!$user->validatePassword($this->password))
        {
            $this->errorCode = self::ERROR_PASSWORD_INVALID;
        }
        elseif ($user->status == Users::STATUS_BLOCK)
        {
            $this->errorCode = self::ERROR_USER_NOT_ACTIVE;
        }
        else
        {
            Yii::app()->session['role'] = $role;
            $this->_id = $user->id;
            $this->username = $user->username;
            $this->_name = $user->name;
            $this->errorCode = self::ERROR_NONE;
        }
        return $this->errorCode;
    }

    public function authenticateFB()
    {
        $user            = Users::model()->find('LOWER(username)=?', array(strtolower($this->username)));
        if ($user === null)
            $this->errorCode = self::ERROR_USERNAME_INVALID;
        elseif ($user->status !== Users::STATUS_ACTIVE)
        {
            $this->errorCode = self::ERROR_USER_NOT_ACTIVE;
        }
        else
        {
            $this->_id       = $user->id;
            $this->username     = $user->username;
            $this->_name     = $user->name;
            $this->errorCode = self::ERROR_NONE;
        }
        return $this->errorCode;
    }

    /**
     * @return integer the ID of the user record
     */
    public function getId()
    {
        return $this->_id;
    }

    public function getName()
    {
        return $this->_name;
    }

}
